Keep a tight rein on the temperature
From Fallen London Wiki
A player-created Guide is available for this content: Vertiginous Horticulture (Guide) |
Spoiler warning! This page contains details about Fallen London Actions. |
From: Vertiginous Horticulture
Fungi require carefully controlled conditions – not too hot, and not too cold. Your
[Growth] are picky about their environment.

Unlocked with Rooftop Growth, Classification: Fungi,
The Airs of London 0-50,
Nurturing a Rooftop Growth 1-150
Challenge information
- 52 - very chancy (41%)
- 64 - chancy (51%)
- 77 - modest (61%)
- 89 - very modest (71%)
- 102 - low-risk (81%)
- 114 - straightforward (91%)
- 125 - straightforward (100%)
Each point of Rooftop Growth, Difficulty: increases the base difficulty by 5 points.
Success
Just right
Description summary:
The description depends on your Rooftop Growth.
![]() | Description |
---|---|
3: Prize-Winning Peppercaps | Prize-Winning Peppercaps grow best in the dark, [...] under sweltering conditions. [...] getting this [...] to the right levels of heat while keeping it comfortably enshrouded in darkness is no trivial feat. Eventually you land upon a construction [...] that does the trick. |
5: False-Cantigaster Hybrids | False-Cantigaster Hybrids wither and die unless kept within a very specific temperature band [...], coincidentally, of a feverish human body. You stoke the burners, [...] and try not to think about the Hybrids' seeping, black caps. Don't get too close. |
7: Tomorrowspore Ortcaps | Your Ortcaps [...] are very sensitive even to the memories of heat. Training yourself only to recall times and places cooler than an autumn breeze [...] When you can walk the allotment without the Ortcaps' frills shrinking in alarm, [...] you've struck the right balance. |
[Find the rest of the story at https://www.fallenlondon.com]
Shadowy is increasing…
You've gained (12 +
Growth Difficulty) x Nurturing a Rooftop Growth
[The Airs of London change…] (random)
Rare Success
Just right
[...]
A cloud of spores puffs up from an otherwise-hidden fungus colony on the next roof. [Text] It seems you've landed on the right temperature.Description summary:
The first paragraph is the same as the regular success. An additional passage in the second paragraph, after the first sentence, is present if you own a Sporing Bonnet.
![]() | Description |
---|---|
Yes | Your sporing bonnet releases a fine dusting in agreement. |
[Find the rest of the story at https://www.fallenlondon.com]
Wiki note: Rare success is 30%.
Shadowy is increasing…
You've gained (14 +
Growth Difficulty) x Nurturing a Rooftop Growth
[The Airs of London change…] (random)
Failure
Uncontrolled conditions
One of the problems [...] is that you are somewhat exposed. Between the icy roof-drip from far, far above, and the household below lighting their fireplace and belching hot smoke [...], keeping your
[Growth] at the optimum temperature is nigh impossible.

Shadowy is increasing…
You've gained (1 +
Growth Difficulty) x Nurturing a Rooftop Growth
[The Airs of London change…] (random)
Categories:
- Pages Without Guide Restrictions
- Rooftop Growth: Text Uses
- Rooftop Growth, Classification:
- The Airs of London
- Nurturing a Rooftop Growth
- Shadowy Challenge
- Rooftop Growth, Difficulty:
- Rooftop Growth, Difficulty: Formula Uses
- Actions
- Nurturing a Rooftop Growth Gain
- The Airs of London Gain
- Rare Success
- Sporing Bonnet Text Uses